21526491

素因数分解:

$3^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{4289}}^1$

素因数の和:4538

約数の個数: 16

約数和(自身を含む): 32947200

約数和(自身を除く): 11420709

約数列:

[1, 3, 7, 21, 239, 717, 1673, 4289, 5019, 12867, 30023, 90069, 1025071, 3075213, 7175497, 21526491]

約数ペア:

[(1, 21526491), (3, 7175497), (7, 3075213), (21, 1025071), (239, 90069), (717, 30023), (1673, 12867), (4289, 5019)]